| 1 |
The mesodermal cells do not invaginate but migrate medially and caudally from both sides and create a midline thickening called. |
- A. Hensen's node
- B. Primitive streak
- C. Hypoblast
- D. epiblast
|
| 2 |
Oxytocin is secreted by the endocrine gland named: |
- A. Pituitary gland
- B. Thyroid gland
- C. Parathyroid gland
- D. Adrenal gland
|
| 3 |
Which light enhance cell division and retards cell enlargment. |
- A. Red
- B. Green
- C. Blue
- D. Violet
|
| 4 |
The addrenaline cortex produces ______________ |
- A. Adrenaline
- B. Calcitonin
- C. Epinephrine
- D. Aldosterone
|
| 5 |
In the zone of elongation, the volume of the cells increase upto. |
- A. 100 times
- B. 150 times
- C. 200 times
- D. 250 times
|
| 6 |
In which developmental stage, germ layers are formed. |
- A. Cleavage
- B. Blastula
- C. Gastrula
- D. Organogenesis
|
| 7 |
Study of aging is called |
- A. Teratology
- B. Gerontology
- C. Cell biology
- D. Paleontology
|
| 8 |
Young tissues retaining the potential to divide. |
- A. Meristem
- B. Xylem
- C. Phloem
- D. Cork
|
| 9 |
Gray vegetal cytoplasm gives rise to. |
- A. Gut
- B. Muscle cells
- C. Notochord
- D. Larval epidermis
|
| 10 |
Intercalary meristems are situated at. |
- A. Root apex
- B. Shoot apex
- C. Base of internode
- D. Top of internode
|